Atmospheric cooling tower



NOV. 3, 1931. G. T MARTIN 1,830,366

ATMOSPHERIC COOLING TOWER e MM Nov. 3, 1931. s. r4 MARTIN ATMOSPHERIC CGOLING TOWER Filed July 2, 1928 4 Sheets-Sheet fly. .f2

G. TA MARTIN Nov. 3, 1931.

ATMOSPHERC COOLING TOWER Filed July 2. 1928 4 Sheets-Sheet NOV. 3, 1931. Gl T MART|N 1,830,366

ATMOSPHERIC COOLING TOWER Filed July i), 192B 1 SheeS-Shet l www " tured decks.

Patented Nov. 3, 1931 UNITED STATES PATENT OFFICE GUY T. MARTIN, OF LOS ANGELES, CALIFORNIA, ABBIGNOB T0 FLUOB CONSTRUCTION C., 0F LOS ANGELES, CALIFORNIA, A CORPORATION OF CALIFORNIA ATMOSPHERIC COOLING TOWER Application illed July 2,

This invention has to do generally with wind-compensating means for atmospheric cooling towers.

An atmospheric cooling tower, as generally constructed, includes a series of -verticall spaced and apertured decks, usually horizontal, and louver boards which incline u wardly and outwardly from near the edges oi) the decks. Air passes to and from the interior of the tower through substantially horizontal louver o )enings defined by the said louvcr boards. liiquid is delivered over the uppermost deck of the tower and permitted to iiow downward through the series of a er- The li uid, during its fal is cooled as it is brought, in drop form, into intimate Contact with air currents fiowing transversely through the chambers between the decks, and also as it is exposed to said currents in spreading over slats or board members which are usually specially arranged to form the flocks. The cooled liquid is discharged into a basin at the tower base.

During periods of relatively slight wind veloritv. excessive loss of liquid from the tower is prevented by the louver boards. In the event of high winds. however. suiiicient liquid may he carried by the wind through the louvers to constitute serious liquid loss unless provision is made for counteracting the eiects of suc-h winds. Furthermore, the tower etlicienov is decreased at such times due to the leeward side of the tower being oversupplied with liquid blown from the windward side. In a co-pending application entitled Atmospheric cooling tower, filed by me August 6, 1927, Serial Number-211.019, I have explained a system ot' baiiies or tilting;r decks disposed within tho chambers between adjacent decks, which system was devised for the purpose of compensating the etl'ects of high winds. In another fro-pending' application entitled Atmospheric cooling tower. filed July 2. 1928. Serial Number 290.005. (since issued as Patent No. 1.786.076. dated Der. 23. 1930) l' have disclosed a liquid distributing system` the general purpose of this system being: to compensate th(` ette-cts of hi gh winds through control of the initial delivery of fluid to the tower or through such control 1928. Berlll In, 290,006.

plus control of a baille system. These systems, as illustrated, involve the services of an attendant when it is desired to adjust or regulate the compensating members.

In some of its ,phases the present invention cmitemplates the use of either one or both of the aforementioned systems, but incorporates therewith means for automatically controlling the operation of these systems in accordance with existing wind conditions, both as regards direction and velocity. As the wind conditions change, so also are the systems changed, but always in a compensatory manner. It is understood that in its broader aspects the present invention is not limited to the above examples of application but may serve to control other cooling tower mechanisms in relation with wind conditions.

By means of the present invention, motion of a controlling or actuating member is produced bv virtue of varying wind conditions and thisI motion is transmitted either directly or indirectly to either or both the ballie system and liquid di stributing system or to other wind-compensating devices.

It may also be stated that an object of my invention is to provide an automatic and properly sensitive control means for cooling tower operation, such means economically dispensing with the services of an attendant and enabling the tower to operate efficiently as a unit.

Additional objects and advantages of my invention will be made apparent in the following detailed speciication wherein reference is made to the accompanying drawings, in which:

Fig. 1 is a vertical sectional view showing an atmospheric cooling tower equipped with an embodiment of my invention;

Fig. 2 is an enlarged, fragmentary section on line 2 2 of Fig. 1;

Fig. 3 is a reduced section on line 3 3 of Fig. 2, certain parts of the device at the left of the section line being shown in brokenJ away section;

Fig. 4' is an enlarged view, from the aspect of Fig. 2, of a controlling device used in connection with the apparatus, parts being shown conventionally Fig. 5 is an enlarged section on line 5-5 of Fig. 4;

Fig. 6 is an elevation of Fig. 5, as viewed from the right thereof;

Fig. 7 is an enlarged, detail section on line 7--7 of Fig. 6;

Fig. B is an enlarged fragmentary section l on line 8-8 of Fig. 6; and

. tures are permissible Without departing from the scope of said invention. urthermore, while I have shown 'herein a single, self-contained-tower unit, a tower for use in a commercial installation often includes a series of auch units, joined end to end, in which event end louvers are required only on the outer extremities of the end units of the series.

Thel cooling tower frame work includes corner posts 11, center end posts 12, horizontal headers 13 extending substantially 4at right angles to headers 14, all serving as deck supports, and crown structure 18. F ooting for the tower is made in a collecting basin (not shown.) I

Louver boards 16 are suplorted in upwardly and outwardl inc ed positions from posts 11 and 12, t e lower edges of the boards being substantiallyopposite decks 15.

By so arranging the louver boards, wind currents are caused to flow into the tower through the Windward openings 17, thence downwardl -then horizontally through the chambers (l 'ndividually defined vertically by each pair o adjacent decks (for instance, decks 15 andy 15a), and finally are deiiected upwardly and outwardly through leeward louver openings 17a.- The deck assemblies 15 and 15a preferablliy, though not necessarily, extend horizonta y, and are constructed in a manner suitable for providing proper surface for contact with the downlowing liquid. For instance,- ,deck 15 is constructed of a series of vertically spaced members or slats 19 and 19a, horizontally staggered with respect to eachother toleave staggered openings20, and spaced verticall by means of transverse members 21 so the own-liowing liquid is thoroughly exposed to the air in spreading over members 19 and 19a as it flows through thedeck. Adj acent deck assemblies have their Vslat members arranged relatively anularly, as it is clear-` ly shown in Fig. 1, to t e end that the breaking up and spreading of the liquid mass may be more completely accomplished.

Baiiles 22 and 22a are shown as representing a baiile system for directing the flow of air currents in the chamber C. The baffles zonta y Lacasse ma be constructed similarly to the deck 15 an extend substantially the entire length of the chamber between center posts 12. It is seen that each baille 15 is centrally pivoted to the center posts 12 at 23 in a manner such that it may be tilted to defiect air currents flowing throu h the chamber, or it may be held horiyto serve as an additional deck. Adjacent aiies 22 and 22a are interconnected by rod 24, pivotally joined to said bailles at 25, by means of which oscillatory motion of one ofthe ballles is imparted to the other.

A distributing system generally designated as 26 and substantially as disclosed 1n my aforementioned co-pending application,

Serial Number 290,005, filed July 2, 1928, is

illustrated in Fi i. 3. A broken away sectlon of the left-han side of distributor box or conduit 27 is taken for facilitating the explaextending normally with the distributor ox on op osite sides of the tower and serving to distri ute liquid, which flows from box 27, through Vopenings 28 and 28a.. The amount of liquid which flows through these openings is regulated by vertically movable gaes or valves 30 and 30a guided in ways 31 an 31a. A rock shaft 32 is mounted for oscillation on journal block B, located midway between the troughs. Rocker arm 33 is non-rotatably fixed to shaft 32 and is adjustably and pivotally connected to valves 30 and 30a in a manner such that an upward movement of one valve is simultaneously accompanied by an equal downward movement of the other valve. A crank arm 34 is non-rotatabl fixed to shaft 32, and is pivotally connecte at 35 with connecting link 36, the latter crossing the line of centers of shaft and pivots. The

rank arm 34 and link 36 ,are provi ed with l a lurality of adjustment holes 35a b means o which the degree of Vrotation o rocker arm 33 (and hence the verti'cal motion of the gates) ma be varied with a given movement of the lin s. It is seen that upon clockwise rotation of rock shaft 32 (as viewed in Fig. 3) increased iluid iow through opening 28, and thence to one side of the tower, results from the upward movement of valve 30, and simultaneously, decreased ilow to the opposite side of the tower through the opening 28a results from the downward movement of valve 30a. It is evident that the converse is true for counterclockwise rotation of shaft 33.

In describing the operation of the baille system and the liquid distributing system it is assumed that wind currents flowing in the direction of arrowL tend to shift the body lil) Batlle 22 is then to be tilted downward to the left to dotted line position 22L, to the end that wind currents flowing through the chamber C are deflected and broken up, thereby inhibiting their tendency to shi t within the chamber to the vleeward side. Simultaneously with the baille movement, rocker arm 33 is to be tilted to position BSL thereb v effecting simultaneously the raising of valve 30 and the lowering of valve 30a, with the result that liquid flow to the Windward side of the tower is increased and the How to the leeward side decreased. The result of this action is that wind currents of appreciable velocities within the tower act against the heavier body of falling liquid at the windward side, sweeping part of it toward the leeward side, but not out of the tower, and, in effect, distributing the whole mass of falling liquid substantially evenly from side to side.

Considered in its broader aspects, my invention contemplates the provision of windactuated means which, in effect, is adapted to move and establish the position of the baille, valve or like members in accordance with variations in the existing direction and effective pressure of the Wind. This means includes a movable vane or equivalent member associated with the tower and exposed to the wind. Now While it lies Within the scope of my invention and my broader claims to utilize the power developed by this vane in its movement for directly moving these members, the vane is preferably employed as a controlling element for a prime mover which is drivingly connected to said member. It will therefore be understood that the following description is to be considered broadly as illustrative of and not restrictive on my invention. and that my specification of a particular type of prime mover, particular contol elements therefor, and the particular connection between the various members, is not to be taken as a limitation on the broader claims.

I have indicated a prime mover in the form of a reversible electric motor 37 having shaft connection 38 with a conventionally illustrated speed-reducing gear assembly 39 said gear assembly being coupled at 38a to a similar speed-reducing gear assembly 39a. the purpose of these assemblies being to transmit drive from the motor to take-off shaft 40 of assembly 39a at a greatly reduced rate. For instance, the relative angular velocities of the motor shaft and take-off shaft 40 may be 4800 to 1. Shaft 40 is associated with an electrical switch device generally indicated at 4l. (lperatively connected with this switch devicc is a wind-exposed vane 42. A onveniional l ype of magnetic switch 43 is selectively actuated from contact device or relay 4l. and is adapted reversibly to direct electric current to motor 37 through the lines 44.

the liquid" Power connections for o erating the aforementioned baflle or distri uting system from shaft 40 may be made at A (Iig. 4) as will later be described.

In electrical switch 41, indicated in detail in Figs. 5 and 6, a vertical support 45 having a base 45a fixed to crown structure 18 at 18a (Fig. 2), is adapted to provide bearing for shaft 46 at 47. Additional outboard support for this shaft is provided at 48 by means of an arm 49 extending from said standard and suspending a support 50 carrying a bearing 50a. Keyed to shaft 46 is a collar 51 about which hub 52 is adapted to be locked releasably in adjusted position by set screw 53; an integral arm 54 extends upwardly from said hub to support wind vane 42, and downwardly from the hub to suspend a weight 55 for counterbalancing the vane. The vane may be of any suitable material and size. It is evident that any angular movement of the vane transmits similar movement to the shaft.

I now provide means for stabilizing the motion of the shaft 46 against comparatively slight wind pressures acting on the vane. A jacent to collar 5l and keyed to shaft 46 is hub 56, supporting a horizontally extending rocker arm 57, which is pivotally connected at 58 to the stabilizing means. Referring to Fig. 7 it is seen that said stabilizing means is embodied in dash pots 59 and 59a synnnetrically disposed with relation to shaft 46, oppositely acting pistons 60 and 60a within dash pots 59 and 59a, respectively, and having usual rods extending through packing glands 62 into pivotal connection with the extremities of arm 57 at 58, and a pipe 63 interconnecting dash pots 59 and 59a eneath their pistons and containing regulating valve 64. It is seen that the dash pots are supported on base 65 which is attached to vertical support 45. Suitable liquid is contained in chambers B and B beneath the pistons 60 and 60o, respectively, and, of course, in their intercommunicating pipe 63. Force tendingr to rotate shaft 46 is transmitted to arm 57 and thence through one piston to the liquid in the associated chamber, according to the direction of rotation, said valve being adjustable to restrict the displacement flow of liquid from said one chamber to the other so that shaft 46 is effectively rotative only when said force is of predetermined strength and of distinct duration. It is obvious that due to this stabilizing means, slight intermittent forces acting against vane 42 do not result in appreciable rotation of shaft 46, and the entire device is kept from being unduly sensitive.

Electrical contact arms 66. 66a., 67 and 67a. are fixed by means of angle plates 68 to a movable contact carrier 69. the latter heilig a plate of fibre or some suitable electrical insulating material and adaptable to oscillatory motion about shaft 46. An arm 70,

`without touching either.

forked at its lower end to provide a guideway 71, is rigidly suspended from said carrier symmetrically with said shaft and the carrier. To take-off or actuating shaft 40, a lever arm 72 is non-rotatably fixed at F, (see Figs. 5 and 6) said arm carryin at its free end 72a pin 73 which is entered in guideway 71. A segmental cam 75, having its arcuate cam face 7 5a concentric with shaft 46, is noni'otatably fixed to said shaft and extends substantially parallel with carrier 69. Contact arms 67 and 67a. are adapted to be actuated by means of rollers or cam followers 76 and 76a joined to said contact members as at 78.

Engaging members 79 of any suitable shape for instance, semi-circular as shown) are xed to the upper end of the contact arms. Fig. 9 shows more clearly the positions of a iven contact arm 67a and its associated cam ollower 76a with respect to carrier 69 and cam 75. Thus it is seen that said follower is disposed substantially in the plane of the cam, and that the cam and followers are free to move between the carrier and contact arms Insulated wires connecting the contact arms with magnetic switch 43 are 'ven primed numerals in correspondence with the associated contact arm members.

Assuming that no wind lpressure is brought to bear against vane 42, t e normal position of the cam and the cam followers are clearly shown in Fig. 5. It is seen that the cam, in this position, is verticall symmetrical with shaft 46 and that cam fo lows 7 6 and 7 6a extend inwardly on radial cam faces R a distance at least equal to the distance between contact surfaces 7 9. The contact arms are of resilient material so that they will always assume the illustrated relative positions when.

the followers are in the positions relative to the cam shown in Fig. 5. It is evident that upon rotation of the cam towards either side, engagement is established between the contact arms on that side and that said engagevment can be broken only by the cam returning to its normal position or by followin rotation of carrier 69, and therefore t e arms. through the same angular distance and in the same direction as the cam movement.

I now provide means for transmitting motion from shaft 40 to the baille and liquid distributing systems outlined previously in this Vspecification and for interconnecting these systems This illustration of a particular means is not to be interpreted as being restrictive on my invention but merely as a typical means for accomplishing my purpose.

Arm 80 is non-rotatably fixed to shaft 40 at A. Pivotally connected to the end of said arm at 81 is a vertically disposed rod 82, pivoted at its opposite end at 84 to arm 83a. Arm 83a and arm 83, are spaced apart and are non-rotatably fixed to a rock shaft 85 igsaasoe which extends horizontally between and has bearing on adjacent center posts 12. Another verticall disposed rod 86 is pivotall connected at 87 with arm 83, and at 88 wit baille 22, for the purpose of transmitting,r oscillator motion from shaft 85 to said baffie. In ig. 3 it is seen that a horizontall disposed arm 89 is non-rotatably fixed to roch shaft 85 at a location on said shaft intermediate adjacent posts 12 and suitable for connection with distributing system 26. Link 36, previously mentioned, is povotally connected at 90 for ocillation with arm 89 and for actuating crank arm 34 associated with the distributing s It is evi ent that shaft 85 rovides unitary means for transmitting ose ations of shaft 40 to the bullies and valves previously mentioned. Obviously, either the baie or distributing system may be disconnected from said unitary means should it be desired to operate only one of them. In describing the general operation of my invention, I first assume that vane 42 is openly exposed to the wind. Wind pressureof comparatively short duration against the vane would not be transmitted to the baffle or valve systems due to the action of the reviously described stabilizing system. HEW- ever, comparatively steady wind pressure against the vane results in rotatory motion being transmitted to shaft 46 in accordance with the direction in which the vane is moved. Cam is rotated simultaneously with the shaft, and by moving its followers 76 or 76a., according to its direction of rotation. establishes contact between contact members 66 and 67 or 66a and 67a, respectively. Current is thus caused to flow through the en gaged contact members and thence through Wires leading to a typical reversing switch 43. By means of said switch, line current is directed through wires 44 to reversible motor 37, the direction of flow of said current and therefore the direction of rotation of said motordepending upon the pair of contact arms brought into engagement. As previously mentioned, rotational motion is imparted at a greatly reduced rate from motor shaft 37a to shaft 40 by means of reduction gear mechanisms 39 and 39a.

Arm 72 is rotated by shaft 40 at end F (see Figs. 5 and 6) and by virtue of pin and slot connection 73, 71, said arm effects movement of contact carrier 69 about shaft 46 and in the same direction in which said shaft has moved or is moving.

` Inasmuch as cam 75 is, rigidly connected with the vane 42 it follows that its position is established or set in accordance with the position of the vane. Due to rotation of the cam through an angular distance in proportion to the wind pressure against the vane, contact pairs comprising arms 66 and 67 or 66a and 67a, respectively, are brought together according to the direction of wind pressure on vane 42 and therefore the direction of rotation of 'cam 75.

that the cam remains stationary after establishing contact between members of either of said pairs, said contact can be broken only by rotation of carrier 69 in a direction and angular distance similar to that traveled by the cam in establishing said contact. Therefore leads from the contact members are connected in combination with switch 43 in such a manner that contact established between members 67 and 68 or 67a and 68a, respectively, results in rotation of motor 37 an therefore, shaft 40, in such direction as to cause carrier 69 to be rotated through arms 72 and 70, in a direction and distance such that the contact between said members is broken, and the motor therefore stopped. It is apparent that a similar sequence of operation would result from rotation by the cam in either direction and from any position.

From the above description it is seen that by the use of switch 4l, shaft 40 is rotated through an angular distance in accordance with and in roportion to the direction and force of wind) pressure against the vane.

For iurposes of explanation it is herein assume that shaft 40 and therefore arm 80, is rotated counterclockwise to a position indicated by dotted lines at BOL, and that wind is blowing in the direction of arrow L. It is evident that rods 82 and 86 and rocker arm 83 assume the positions indicated by dotted lines in Fig. 1 after the described motion of arm 80. Baffie 22 is thereby tilted downward to the left as in position 22L, such position being desired for deflection of the wind by the baille. Simultaneously with the rotation of rocker arm 83, arm 89 (see Fi 3) and link 36 are brought into the dotte position shown. Through connection with link 36, rock shaft 32 and therefore lever 33 are rotated clockwise, said lever assuming position 33L. Since valves 30 and 30a. are pivotally joined to lever 33 it is evident that valve 30 is raised to permit increased liquid flow to that side of the tower toward which the wind is blowing, and that valve 30a is lowered to reduce the flow to the opposite side.

From the above description it is evident that by this invention a baiiie system and a liquid distributing system, as hereinabove i described, or any other movable wind comlil) ensating members of an atmospheric cooling tower may be actuated in immediate response to changes in wind movements. Due to the automatic performance of the device, constant and reliable adjustment of wind compensating members is accomplished in a manner obviously more eiiicient than could be attained in a system requiring manual control. Numerous other advantages of my invention will be evident to those skilled in the art.

It will be understood the drawings and description are to be considered merely as illustrative of and not restrictive on the broader claims a pended hereto, for various changes in esign, structureI and arrangements may be made without departing from the s irit and scope of said claims.

I c aim:

1. In combination with a movable, windcompensating member of an atmospheric cooling tower, a prime mover, a driving connection between the mover and member, and wind-actuated means adapted to control the prime mover.

2. In combination with a movable, windcompensating member of an y atmospheric cooling tower, an electric motor drivingly connected to the member, and a windractuated control switch in the motor circuit.

3. In combination, a wind-compensating member of an atmospheric cooling tower, said member being movable through a predetermined path, and including a prime mover and wind actuated means for controlling said prime mover, adapted to establish the position of said member in its path of movement.

4, In combination with a movable, windcompensating member of an atmos heric cooling tower, a wind vane associate with the tower and movable under wind pressure, an actuating shaft operatively connected to the member, a rime mover drivingly connected to said s aft, and controlling mechanism for the prime mover and adapted to be operated by the vane in its movements.

5. In combination with a movable, windcompensating member of an atmospheric cooling tower, a prime mover drivin ly connected to the member, wind-actuate means adapted to control the prime mover and including a movable wind vane, and stabilizing means for controlling the movement of the vane under wind pressure.

6. In combination with a movable, windcompensating member of an atmospheric cooling tower, a prime mover drivingly connected to the member, wind-actuated means adapted to control the prime mover and including a movable wind vane, and stabilizing means including a dash pot for controlling the movement of the vane under wind pressure.

7. In combination with a movable, windcompensating member of an atmospheric cooling tower, a prime mover drivingly connected to the member, wind-actuated means adapted to control the prime mover and including a movable wind vane, and adjustable stabilizing means for controlling the movement of the vane under wind pressure, said stabilizing means including two oppositely disposed dash pots, a passageway interconnecting the duid chambers of the dash pots,

8. In combination with a movable, windcompeiisating member of an atmospheric` cooling tower, a wind vane associated with the tower and movable under wind pressure, an actuating shaft operatively connected to the member, an electric motor drivingly connected to said shaft, and a control switch in the motor circuit adapted to be operated by the vane in its movements.

9. In combination with a movable, windcompensating member of an atmospheric cooling tower,'a rock shaft, an oscillatory wind vane none-rotatably mounted on said shaft for imparting oscillatory motion thereto, an actuating shaft operatively connected to said member, an electric motor drivingly connected to the actuating shaft, and a control switch in the motor circuit adapted to be actuated by both said rock shaft and the motor.

10. In combination with a movable, windcompensating member o an atmospheric coohng tower, an actuating shaft operatively connected to said member an electric motor drivingly connected to said actuating shaft, a control switch containing twopairs of contact arms for reversibly actuating a magnetic switch in the motor circuit, a rock shaft, an oscillatory carrier supporting said contact arms, an oscillatory cam operable b said rock shaft and having two cam followers each adapted to actuate a pair of contact arms, an oscillatory wind vane drivingly connected to said rock shaft so as to enga ngly actuate the contact arms through sai cam and followers, and means drivingly connecting said motor with said carrier for disengagin ly actuating said arms.

11. an atmospheric coolin tower, a movable baille for directing the ow of air currents through an interior cooling chamber of the tower, valve means operable to control the iiow of liquid from a liquid distributing system through said chamber, and wind controlled means for simultaneously moving said baille and said valve means according to wind movements against the tower.

12. In an atmos heric coolin tower, a movable baie for 'rectingthe ow of air currents -through an interior cooling chamber, means for actuating said bailie, and means for controlling said actuating means according to wind movements against the tower.

13. In an atmospheric cooling tower, a liquid distributing system having valve means operable to control the flow of liquid to an interior cooling chamber, and wind controlled means for moving said valve means according to wind movements against the tower. 0

14. In an atmospheric cooling tower, a

movable baille for directing the How of air currents through an interior cooling chamber, and wind controlled means forY moving said baiile according to wind movements against the tower, said means embodying ali electric motor driviiigl-y connected to the balile and a wind-actuated control switch in the motor circuit.

15. In an atmospheric cooling tower, a liquid distributing system having valve means operable to control the flow of liquid to an interior cooling chamber, Vand wind controlled means for moving said valve 'means according to wind movement against the tower, said control means embodying an electric motor drivingly connected to the valve means, and a wind-actuater control switch in the motor circuit.

16. In an atmospheric coolin tower having an interior cooling cham er through w ich air currents are adapted to ass, a liquid distributing system associated) with the chamber and having delivery means whereby liquid is dischar ed so as to fall through said chamber, said oliver means being selectively controllable to 'scharge the liquid at different points over the chamber, meansfor operating said liquid deliverylineans, and means for controllin said operating means in accordance with wind velocity.

17. In an atmospheric coolin tower havan interior cooling cham er through in wgich fluid is adapted to fall and throu h which air currents are ada ted to pass su stantially horizontally, wind) directin means at the side of said chamber, a baille isposed within said chamber in the path of such currents and s aced from said wind directin means, said iale being movable within sai chamber, and wind actuated means adapted to control movement of said member.

18. In an atmospheric cooling tower having an interior coolingchamber through which Huid is adapted to fall and throu h which air currents are adapted to pass su stantially horizontally, wind directing means at the side of said chamber, a baille disposed within s aid chamber within the path of such currents and adapted to be inclined with respect to the horizontal, a movable mounting for the baille whereby it is movable to vary its angle of inclination, and wind controlled means for so moving the baffle.

19. In an atmospheric cooling tower having a vertically arranged series of cooling chambers through which air currents are adapted to pass substantially horizontally a given chamber being vertically defined by spaced upper and lower decks through which iiid is adapted to falland thus pass substantially vertically through the chambers, wind directing means at the side of said chamber, a series of inclinable and interconnected bales arranged in said chambers in the path of said air currents, and wind controlled means for moving said baliles.

20. In a water-cooler, distributing decks mounted pivotally, and controlling means operatively interconnecting said decks including Wind resisting surfaces adapted to automatically move the decks to different slantng positions according to different wind pressures.

2l. In a Water-cooler, a main distributing flume, stationary distributing decks below the Hume, swingable distributing decks between the stationary decks, and controlling means operatively interconnecting the swinging decks and including Wind actuated means whereby the movable decks are slanted to different slanting positions under varying forces of the wind and adapted to distribute water evenly over the stationary decks against the Wind.

In witness that I claim the foregoing I have hereunto subscribed my name this 22 day of June, 1928.

GUY T. MARTIN.

of said air currents, and wind controlled means for moving said bales.

20. In a water-cooler, distributing decks mounted pivotally, and controlling means operatively interconnecting said decks including wind resisting surfaces adapted to automatically move the decks to different slanting positions according to different wind pressures.

21. In a water-cooler, a main distributing fiume, stationary distributing decks below the flume, swingable distributing decks between the stationary decks, and controlling means operatively interconnecting the swinging decks and including wind actuated means whereby the movable decks are slanted to different slanting positions under varying forces of the wind and adapted to distribute water evenly over the stationary decks against the wind.

In witness that I claim the foregoing I have hereunto subscribed my name this 22 day of June, 1928.

GUY T. MARTIN.

CERTIFICATE oF connection.

Patent No. 1,830,366. November 3, 1931.

GUY T. MARTIN.

Itis hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 5, line 88, claim 3, before the word "including" insert the word means; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 4th day of October, A. D. 1932.

M. J. Moore,

(Seal) Acting Commissioner of Patents.

CERTIFICATE 0F CORRECTION.

Patent No. 1,830,366. November 3, 1931.

GUY T. MARTIN.

lt is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 5, line 88, claim 3, before the word "including" insert the word means; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 4th day of October, A. D. 1932.

M. J. Moore, (Seal) Acting Commissioner of Patents. 

